The Chemical Basis of Life

Contain carbon atoms

bonded to hydrogen.

• organic compound

• carbon dioxide

• macromolecule

• monomer

Tags

NGSS.HS-LS1-6

Large complex molecules made of chains of smaller molecules.

• hydrolysis

• macromolecule

• phospholipid

• big molecule

Tags

NGSS.HS-LS1-6

Molecule that is a major component of cell membranes because it is impermeable to water.

• carbohydrate

• macromolecule

• monomer

• phospholipid

A small building block molecule that combine to from polymers

• monomer

• macromolecule

• organic compound

• Homer Simpson

Tags

NGSS.MS-PS1-1

What type of bond is found BETWEEN water molecules?

• hydrogen bonds

• ionic bonds

• nonpolar covalent bonds

• polar covalent bonds

A macromolecule is found to have C, H, O, N, and P. Identify?

• Carbohydrate

• Lipid

• Nucleic Acid

• Protein

Answer explanation

All of the macromolecules have carbon (C), hydrogen (H), and oxygen (O). Nitrogen is found in proteins and nucleic acids. Phosphorous is found in nucleotides (and phospholipids) which is found in nucleic acids. Nucleic acids are the only macromolecule with C, H, O, N, and P.

A single atom of carbon is joined to a hydrogen atom. What is the maximum number of double bonds the carbon atom may yet form?

• 1

• 2

• 3

• 4

Answer explanation

Carbon can make a total of 4 bonds

Tags

NGSS.HS-LS1-6

A covalent bond is formed between how many monomers

• 6

• 2

• 4

• 1

In which of these are the electrons shared unequally?

• double covalent bond

• triple covalent bond

• hydrogen bond

• polar covalent bond

• ionic and covalent bonds

A reaction that breaks down polymers into monomers by releasing water.

• freezing point

• hydrolysis

• enzyme

• protein